全文获取类型
收费全文 | 20725篇 |
免费 | 564篇 |
国内免费 | 263篇 |
专业分类
管理学 | 1544篇 |
劳动科学 | 2篇 |
民族学 | 227篇 |
人才学 | 3篇 |
人口学 | 267篇 |
丛书文集 | 2226篇 |
理论方法论 | 943篇 |
综合类 | 13451篇 |
社会学 | 1707篇 |
统计学 | 1182篇 |
出版年
2024年 | 37篇 |
2023年 | 168篇 |
2022年 | 189篇 |
2021年 | 225篇 |
2020年 | 333篇 |
2019年 | 395篇 |
2018年 | 392篇 |
2017年 | 478篇 |
2016年 | 421篇 |
2015年 | 530篇 |
2014年 | 1009篇 |
2013年 | 1633篇 |
2012年 | 1247篇 |
2011年 | 1388篇 |
2010年 | 1088篇 |
2009年 | 1123篇 |
2008年 | 1262篇 |
2007年 | 1432篇 |
2006年 | 1359篇 |
2005年 | 1309篇 |
2004年 | 1224篇 |
2003年 | 1150篇 |
2002年 | 968篇 |
2001年 | 782篇 |
2000年 | 480篇 |
1999年 | 223篇 |
1998年 | 124篇 |
1997年 | 91篇 |
1996年 | 80篇 |
1995年 | 76篇 |
1994年 | 60篇 |
1993年 | 47篇 |
1992年 | 51篇 |
1991年 | 42篇 |
1990年 | 32篇 |
1989年 | 36篇 |
1988年 | 18篇 |
1987年 | 16篇 |
1986年 | 6篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1983年 | 6篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1975年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
《Omega》2015
In this paper, we study a buyer׳s configuration of flexibility strategies under supply uncertainty. His main supplier׳s production process is uncertain, and he can either choose pricing flexibility (setting prices depending on the available supply) or operational flexibility (requesting a contingent order from a backup supplier). As the buyer may or may not find a suitable contingent supplier ex post, we study two scenarios that the backup supplier׳s supply is infinite, and that this supply is random. We also include the factor that the main supplier may determine the wholesale price. We demonstrate that the adoption of flexibility strategies is controlled by threshold policies in different scenarios whether the main supplier determines the wholesale price or not. We also investigate how the buyer׳s attribute (finding a suitable contingent supplier) affects the configuration of flexibility strategies. 相似文献
992.
How do people know which family member is trustworthy? In this study, the authors tested the hypothesis that people use their perception of a family member's self‐control as an indicator of his or her trustworthiness. Eighty‐four Dutch families consisting of 2 parents and 2 children completed questionnaires assessing each family member's trust in and perceived self‐control of the other 3 family members. This full‐family design enabled the authors to examine their hypothesis in horizontal relationships, between family members of equal status (i.e., parent–parent and sibling–sibling relationships), and vertical relationships, in which partners have unequal status (i.e., parent–child and child–parent relationships). Consistent with the hypothesis, Social Relations Model analyses showed that being perceived as having higher self‐control is related to greater trustworthiness among adults and children in the large majority of horizontal and vertical relationships (10 out of 12). These findings highlight that perceived self‐control is an important factor by which to gauge trustworthiness in families. 相似文献
993.
Drawing from 2 largely isolated approaches to the study of social stress—stress proliferation and minority stress—the authors theorize about stress and mental health among same‐sex couples. With this integrated stress framework, they hypothesized that couple‐level minority stressors may be experienced by individual partners and jointly by couples as a result of the stigmatized status of their same‐sex relationship—a novel concept. They also consider dyadic minority stress processes, which result from the relational experience of individual‐level minority stressors between partners. Because this framework includes stressors emanating from both status‐based (e.g., sexual minority) and role‐based (e.g., partner) stress domains, it facilitates the study of stress proliferation linking minority stress (e.g., discrimination), more commonly experienced relational stress (e.g., conflict), and mental health. This framework can be applied to the study of stress and health among other marginalized couples, such as interracial/ethnic, interfaith, and age‐discrepant couples. 相似文献
994.
There has been a shift in the most recent UK Government's Alcohol Strategy (2012) from personal responsibility towards a model of shared responsibility for young people's drinking. On closer examination of the strategy, however, it appears that rather than exonerating young people from blame, governance is merely extended to include wider partners. Using findings from nine focus groups with young people in Liverpool, UK, we explore who they believe are responsible for their drinking behaviours and how they learn to become ‘good drinkers’. Our findings show that while teenagers were aware of dominant alcohol-related messages and maintained a moral position as responsible citizens; they also negotiated and resisted norms about teenage drinking. Although both boys and girls agreed that parents were the primary responsible authority for regulating their drinking, there was gendered disagreement about personal responsibility. The girls described how they were ultimately responsible for any adverse consequences if they drank too much whilst the boys considered a wide range of partners who would be implicated. However, unlike the girls, the boys described a willingness to either abstain or moderate their alcohol intake in order to remain in control and avoid any alcohol-related trouble or harm. 相似文献
995.
The standard deviation of the average run length (SDARL) is an important performance metric in studying the performance of control charts with estimated in-control parameters. Only a few studies in the literature, however, have considered this measure when evaluating control chart performance. The current study aims at comparing the in-control performance of three phase II simple linear profile monitoring approaches; namely, those of Kang and Albin (2000), Kim et al. (2003), and Mahmoud et al. (2010). The comparison is performed under the assumption of estimated parameters using the SDARL metric. In general, the simulation results of the current study show that the method of Kim et al. (2003) has better overall statistical performance than the competing methods in terms of SDARL values. Some of the recommended approaches based solely on the usual average run length properties can have poor SDARL performance. 相似文献
996.
肖显宝 《长春理工大学学报(社会科学版)》2007,20(2):105-108
标记理论在语言分析的各个层面上均有独特的功效,在语义层面上也不例外.在讨论标记理论的基础上,着重对层级反义词的语义标记问题进行了初步的探讨.旨在进一步揭示该词类的语义特征,深化人们对它们的理解和认识. 相似文献
997.
新财经的教育改革要求培养财经技能和职业素养相结合的复合型人才,需要多路径深化财经类专业课程教学改革。TRIZ理论作为创新方法为教师打破原有教学思维模式提供了全新的思路。该研究结合TRIZ理论的创新思维方式,探索了动态创新教学模式下的教学理念,基于最终理想解(IFR)的理论,优化教学目标;基于物-场模型理论,营造教学环境;结合39个工程参数及阿奇舒勒矛盾矩阵理论,创新教学方法。根据研究结果提出了采用基于TRIZ理论的动态教学创新理念,重构课程知识体系;基于理想解(IFR)的模式来设定精细化的教学目标;通过物-场分析法来构建教学环境;利用阿奇舒勒矛盾矩阵研发多种教学方法等财经类专业课程教学改革的对策。 相似文献
998.
《Public Relations Review》2022,48(1):102149
This study applied the contingency theory of conflict management to examine how contingency factors influence the public’s perceptual and behavioral responses to COVID-19 and stance toward the Centers for Disease Control and Prevention (CDC). In particular, we tested political ideology as an important individual characteristic variable to examine its roles in the contingency theory framework. The findings revealed that two situational variables (i.e., threat appraisal and attitudes toward CDC) positively influenced the public’s contingency accommodation stance toward the CDC. Furthermore, greater conservatism was significantly associated with lower levels of threat appraisal and more negative attitudes toward the CDC, however it did not influence the stance toward the CDC. Theoretical and practical implications of the findings and directions for future research are discussed. 相似文献
999.
《Public Relations Review》2022,48(2):102182
This study applied the situational crisis communication theory (SCCT) in political crisis communication amidst the COVID-19 outbreak, a “sticky crisis” that is longitudinal and politicized, thereby involving multiple challenges and complexities. Considering the critical role of Twitter in the information transmissions during the ongoing pandemic, this study considered politicians’ tweets as a proxy to access their crisis communication strategies and conducted a systematic content analysis to critically evaluate COVID-19 crisis communication strategies of two politicians, Trump and Cuomo, according to their perceived day-to-day circumstances during COVID-19. Three strategies categorized by SCCT, deny, diminish, and bolstering, surfaced with significance for both Trump and Cuomo. A new strategy specific to the political context, cohesion, was also identified. In addition, significant differentiation was observed in the strategic narratives between Trump and Cuomo, which reveals the evolving political dynamics in disease representation and crisis messaging. For example, Trump emphasized social exclusion and accusations of Democrats whilst Cuomo stressed care for vulnerable and minority groups and compassion delivery. Moreover, deny strategy, especially accusing other races, significantly boosted audience engagement for Trump. The results are discussed in relation to the idiosyncrasy of the complex COVID-19 pandemic and crisis communication in the political realm. Our findings demonstrate practical implications including online crisis messaging recommendations that foster public trust during politicized and polarized health emergencies and cultivate grounds for information exchange beyond partisan barriers. 相似文献
1000.
劝惩论是明代中叶以后小说理论家提出的重要概念,通过对陆人龙《型世言》创作的剖析,可以看出劝惩论在一定时期内的影响是很大的。 相似文献